Finding the Fourth Proportional to 1,433.01, 1,976.58 and 936.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.01 : 1,976.58 = 936.09 : x
2. Step 2: Convert to fraction form
   1,433.01/1,976.58 = 936.09/x
3. Step 3: Cross multiply
   1,433.01x = 1,976.58 × 936.09
4. Step 4: Simplify right side
   1,433.01x = 1,850,256.77
5. Step 5: Solve for x
   x = 1,850,256.77/1,433.01
6. Step 6: Final answer
   x = 1,291.17